When "asadmin start-database" is used to start the embedded JavaDB (Derby),
there is no way to pass JVM parameters to the JVM used to run the network server
in. The primary JVM parameters that might be needed are to set the min and max
heap (ie. -Xmx and -Xms).
This should be done by adding a new option to the "start-database" command so
that it could be invoked such as:
asadmin start-database --jvmoptions="-Xms128m -Xmx256m"